Hello Friends!

can any body help me???

show that for a quasi static adiabatic process of an ideal gas, the following reaction holds

T$$V^{\gamma-1}}=constant$$

Secondly:::

At about 100ms after detonation of a uranium fission bomb, the "ball of fire" cosists of a sphere of gas with a radius of about 50 ft and a temperature of 300,000 degree Kelvin. At what radius is the temperature 2000 K?

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Use Ideal Gas Law and the Equation for adiabatic process $$PV^{\gamma}=constant$$